Em-Dash AI Detection

Cluster discusses em-dashes (vs. hyphens or en-dashes) as a stylistic telltale for identifying AI-generated text, especially from LLMs like ChatGPT, with debates on human typing habits and typography rules.

🚀 Rising 6.8x AI & Machine Learning
2,895
Comments
19
Years Active
5
Top Authors
#1802
Topic ID

Activity Over Time

2007
3
2008
4
2010
39
2011
27
2012
18
2013
30
2014
42
2015
30
2016
34
2017
50
2018
90
2019
37
2020
61
2021
68
2022
65
2023
229
2024
77
2025
1,827
2026
166

Keywords

e.g AI LLM UTF HTML GPT FAQ dash em en ai noun spaces compound llm proper space

Sample Comments

Buttons840 • Jul 19, 2025 • View on HN

Use two dashes instead of an actual em dash. ChatGPT, at least, cannot do the same--it just can't.

jjgreen • Jul 11, 2025 • View on HN

Just for the em-dashes? Some humans also use them.

cal85 • Oct 13, 2025 • View on HN

It's not an em-dash, it's an en-dash, which is rare in LLM output. Also just stop being insufferable.

bentinata • Sep 11, 2025 • View on HN

Do you use "emdash" because you love to use it but don't want to be mistaken as AI-generated?

singiamtel • Jun 2, 2025 • View on HN

It's the em dash that does it for me

Ralfp • Sep 22, 2025 • View on HN

People usually don't type embdash, just use regular dash (minus sign) they have already on the keyboard. ChatGPT uses emdash instead.

ziml77 • Aug 4, 2025 • View on HN

Keep using them. Don't let AI steal beautiful em-dashes away from you.

delfinom • Dec 19, 2025 • View on HN

There's an emdash, no human being uses emdashes.

emchammer • Mar 27, 2025 • View on HN

Thank God AI hasn’t figured out proper use of em/en dashes yet, so we still have a shibboleth.

ziml77 • Jul 16, 2025 • View on HN

Keep using the em-dash with pride! Don't let the AIs steal such a beautiful thing from us!